// mobile-h5/utils/mp-follow-confirm.js
export function followStorageKey(userId) {
  const id = String(userId || '').trim() || 'anonymous'
  return 'mp_follow_confirmed:' + id
}

export function isFollowConfirmed(userId, storage) {
  const s = storage || (typeof uni !== 'undefined' ? uni : null)
  if (!s || typeof s.getStorageSync !== 'function') return false
  try {
    return String(s.getStorageSync(followStorageKey(userId)) || '') === '1'
  } catch (_) {
    return false
  }
}

export function setFollowConfirmed(userId, confirmed, storage) {
  const s = storage || (typeof uni !== 'undefined' ? uni : null)
  if (!s || typeof s.setStorageSync !== 'function') return
  try {
    s.setStorageSync(followStorageKey(userId), confirmed ? '1' : '0')
  } catch (_) {
    /* ignore */
  }
}

/** @returns {{ step1Done: boolean, step2Done: boolean }} */
export function resolveStepDone({ bound, followConfirmed }) {
  if (bound) return { step1Done: true, step2Done: true }
  return {
    step1Done: !!followConfirmed,
    step2Done: false
  }
}